Distributor member for stokers



Nbv. 21, 1933. T H L 1,936,197

DISTRIBUTOR MEMBER FOR STOKERS Filed Aug. 18, 1932 INVENTOR.

ATTORNEY.

Patented Nov. 1933 li,$36,198 DISTRBU'EGE MEMBER FQR S'EUKlElitfi lPaulA. Ketchpel,

signer to incorporated,

West Enrlewood, hi. it, aslhe Standard stokes (Company,

a corporation oi Delaware Application August is, use. Serial No. coarsebrClaima (o ll===llill The invention relates to the distributor mem= herfor stolrers oi the type wherein a conduit communicates endwise with thefiring opening oil a boiler firebox. As the invention appertains to thedistributor member and its associated parts, only so much or theremainder of the stoher mechanism is shown as is necessary to indicatethe relation of the parts. The distributor inem= her or distributor headas it is mourn in the trade,

is exposed to the intense heat of the firebox. Because of this it isfrequently replaced under some conditions of service. It is the mainpurpose or the invention to. pro= ride on improved and novelconstruction or the l stoher conduit and the distributor member wherebythe latter can be easily and readily re moved from its position. Qtherobjects or the invention reside in the specific form of the parts and inthe particular twinning means employed to'hold the distributor member inplace.

on the drawin Fig. l. is a detail vertical section through the uprightwall oi a boiler firebox showing the de= vice oi the invention appliedthereto in similar section;

his. 2 is a transverse section taken on the in regular section line 22of Fig. l; V

big. it is a fragmentary vertical sectional view on the line 3-3 of Fig.1; and

Fig. 4 is a fragmentary transverse section on I the line l-d of his. 2.

Reflex-ring to the drawing, there a portion of an upstanding wall of boxhaving a firing opening ll therein to which iuel is advanced by thescrew 12 housed within the inclined stoher conduit is which opens end=wise into the urine opening. The mouth portion is or the conduit extendsacross the lower por= tion oi the firing opening. Any preferred con=struction may be employed to attach the conduit to the wall it tomaintain the conduit mouth portion in communication with the 11-1opening. In cross section the mouth portion 14-. oil the conduit issubstantially rectangular in shape and the lower portion oi theconduitis substantially circular in cross sectional form as best shownin Figures 1 and 3. The bottom or the mouth portion 14 is open betweenthe sidewalls lea, 14b, and forward oi the ledge 15. A distributormember or head 16 having a flat upper surface is detachably disposed aswill prose ently appear in the open bottom or the mouth portion 14 toform in efiect a floor portion tor the delivery end of the conduit.- Itwill be observed that the distributor member extends beyond the is shownat it action oi the pressure 1 positely disposed lugs conduit mouthportion into the firing opening to a point adjacent or beyond the insidesurface of the firebox wall it. The plate portion 16a of the distributorhead disposed within the firebox may be formed integral with the head,but preft0 erably, it is constructed as a separable part as hereinillustrated. As the manner in which the plate is attached to the headforms no part of this invention it will not be described.

A plurality oi vertically spaced horizontal rows o5 of jet openings asat l! extend across the upright race it of the distributor member. Thesejet openings communicate with one or more chambers 19 formed within thedistributor member. Steam or any other suitable pressure fluid to issupplied to the chambers through the laterally directed passages topositioned outside the firebox. libel advanced by the screw 12 is movedover the distributor member it into the zone of fluid blasts dischargingfrom the let openings 17, which blasts serve to project the iuel acrossthe plate its over the nrebed .oi the firebox. Adjustable deflectorvanes 2i. constitute continuations of the sidewalls or the mouth portionof the conduit within the urine on nine ii and they may be set to varythe distribution of the fuel.

an improved construction is provided for supporting and attaching thedistributor member 16 to the stoher conduit 13. For this purpose, op==22, 22a extend inwardly trorn the lower marginal l lo, l lh, oi themouth portion is or the stoker conduit, and likewise spaced lugs 23extend torwardly from the ledge 15. These lugs contact the-underside ofthe chambered portion of the distributor member 16, in efiectconstituting'a seat for the some in the open bottom of the mouth portionlid. the seat formed by the aforesaid sitely disposed pins 24, 24aprojecting through the sidewalls Ma, ldb, above and contacting the uppersurface or the end portion of the distributor member adjacent the lugs.These pins are threaded in the sidewalls 14a, Mb and can be inserted orremoved by applying a wrench, or the like to the hexagonal head of eachpin. The axis of the pins is disposed above the upper flat lace oi thedistributor member a distance slightly less than one half the diameterof the this location and by tapering the inner ends oi. the pins it willbe understood that when inserting the pins they gradually press downdistributor member and insure a firm attachment of the same to theconduit regardless of variations in the size of the parts.

Longitudinal movement of the distributor member'lo toward the wall it isprevented by engagement of the upstanding lugs 25, 2511 against the sideof the tapered ends oi the pins 24, 24a, remote from the aforesaid wall.the lugs 25, 25a and the threaded pins because of their location in thecorners formed at the junction of the circular and rectangular portionsof the stoker conduit do not interfere with the movement or the screw 12nor with the fuel being advanced thereby. it is preferred that all ofthe lugs here= toiore named and that the threaded pins should bedisposed as illustrated without the firebox where they will not besubjected to the heat or the lire and where the pins are readilyaccessible.

When the distributor member 16 becomes cracked, burned, warped or forany other reason isnot fit for continual use it may be readily removedby withdrawing the threaded pins 24:, 2401. This detachability of theparts not only reduces the cost of replacement, but permits theinterchange 02 parts with the minimum oi labor or delay,

The constmction disclosed and described rep= resents the preferred andcommercially used term or the invention, but various changes oi de tailmay be made without departing from the scope or invention.

1 claim:

i. In stolrer, the combination or a conduit, a distributor memberconstituting the door portion of the delivery end oi; the conduit, aseat formed in said conduit for receiving said mem her, and oppositelydisposed pins having their inner ends tapered and threaded through onposite sidewalls oi the conduit and extending therein above butcontacting said member for detachably securing the same on said seat.

2. In a stoker, the combination oi a conduit, a distributor memberconstituting the floor por tion of the delivery end oi the conduit, aseat formed in said conduit for receiving said mem her, and oppositelydisposed pins having their inner ends tapered and threaded throughopposite sidewalls oi the conduit and extending there" inabove butcontacting said member for do tachably securing the same on said seat,and upstanding lugs on said member contacting the sides or the pinsremote irom the delivery end of the conduit.

3. In a stolsenthe combination oi a conduit, a distributor memberconstituting the door por-= tion of the delivery end of. the conduit, aseat formed in said conduit for receiving said member, a pin elementthreaded through a sidewall oi the conduit and extending therein abovebut corntacting said member for detachably securing the same on saidseat, a lug element on said niem bercbntacting the side of said pinelement remote from the delivery end of the conduit, the contactingsurfaceoi one of said elements being tapered to insure a rigidconnection between the distributor member and the conduit'when the pinelement is threaded in position.

4. in a stolrer, the combination of a conduit, a detachable floor memberfor said conduit, a seat formed with the conduit for receiving saidmember, a pin element threaded through a sidewall or the conduit andextending therein above but contacting said member for detachablysecuring the same on said seat, and a lug element on said membercontacting the side or said pin eie ment remote from the delivery end oithe cone.

duit, the contacting surface of one of said elements being tapered toinsure a rigid connection between the distributor member and the conduitwhen the pin element is threaded in position.

5. In a stoker, the combination of a conduit having a substantiallycircular receiving end portion and a substantially rectangularly shapeddelivery end portion, the latter having an open bottom, lugs extendingfrom the walls of the said rectangular portion inwardly of the openbottom constituting a seat disposed below the plane of the bottom or thecircular portion of the conduit,

a distributor member loosely disposed on said seat constituting a floorfor the rectangular portion or the conduit forming a continuation oi thecircular portion of the conduit, said member extending from the junctionof said portions of the conduit to the delivery end thereof, a pinelement threaded in a sidewall of the rectangular portion or? theconduit adjacent the junction between the said conduit portions andprojecting through said wall into the conduit at a point above butcontacting said memben and a lug element on said member contacting theside of said pin element remote from the delivery end or the conduit,the contacting surface of one of said elements being tapered to insure arigid cormec-= tion between the distributor member and the conduit whenthe pin element is threaded in position. 7

o. In a stolzer, the combination or a conduit having a substantiallycircular receiving end por tion and a substantially rectangularly shapedde livery end portion, the latter having an open bot= tom, lugsextending from the walls of the said rectangular portion inwardly of theopen bottom constituting a seat disposed below the plane or the bottomof the circular portion or the conduit, a distributor member looselydisposed on said seat constituting a floor for the rectangular portionor? the conduit iorming a continuation ot the cir= cular portion of theconduit, said member extend ing from the junction of said portions oithe conduit to thedelivery end thereof, and a pin threaded in a sidewallof the rectangular portion oi the conduit adjacent the junction betweenthe said conduit portions and projecting through said wall into theconduit at a point above but con= tactingsaid member; the axis of saidpin being above the distributor member a distance less than one hall thediameter of the pin and the end of the pin tapered to graduallycontactthe distribu= tor member as the pin is threaded in position.

7. "in a stoker, the combination or a conduit having a substantiallycircular receiving end por== tion and a substantially rectangularlyshaped de= livery end portion, the latter having an open bottom, lugsextending from the walls of the said rectangular portion inwardly of theopen bottom constituting a seat disposed below the plane oi the bottomof the circular portion of the conduit, a distributor member looselydisposed on said seat constituting a floor for the rectangular portionor the conduit forming a continuation of the circular portion of theconduit said member e:r tending from the junction of said portions ofthe conduit to the delivery endthereoi, a pin threaded in a sidewall ofthe rectangular portion of the conduit adjacent the junction between thesaid conduit portions and projecting through said well into the conduitat a point above but contacting said member, the axis of said pin beingabove the distributor member a distance less tone halt the diameter ofthe pin and the end oi the pin tapered to gradually contact the on;

Mill

rot

member as the pin is threaded in position, and a projection on saidmember engaging the side of the tapered portion of said pin remote fromthe discharge end of the conduit.

8. In a stoker, the combination of a conduit having a substantiallycircular receiving end portion and a substantially rectangularly shapeddelivery end portion, the latter having an open bottom, lugs extendingfrom the walls of the said rectangular portion inwardly of the openbottom constituting a seat disposed below the plane of the bottom of thecircular portion of the conduit, a distributor member loosely disposedon said seat constituting a floor for the rectangular portion of theconduit forming a continuation of the circular portion of the conduit,said member extending from the junction of said portions of the conduitto the delivery end thereof, and oppositely disposed pins threaded inopposite side walls of the rectangular portion of the conduit adjacentthe junction between the said conduit portions and projecting throughsaid walls into the conduit at points above but contacting said member,the inner ends of said pins being tapered.

9. In a stoker, the combination of a conduit having a substantiallycircular receiving end portion and a substantially rectangularly shapeddelivery end portion, the latter having an open bottom, lugs extendingfrom the walls of the said rectangular portion inwardly of the openbottom constituting a seat disposed below the plane of the bottom of thecircular portionof the conduit, a distributor member loosely disposed onsaid seat constituting a floor for the rectangular portion of theconduit forming a continuation of the circular portion of the conduit,said member extending from the junction of said portions of the conduitto the delivery end thereof, oppositely disposed pins threaded inopposite side walls of the rectangular portion of the conduit adjacentthe junction between the said conduit portions and projecting throughsaid walls into the conduit at a point above but contacting saidmember,

the inner ends of said pins being tapered, and upstanding projections onsaid member engaging the sides of said pins remote from the delivery endof the conduit.

PAUL A. KETCHPEL.

